EVEN the most innocent-sounding words can be seized on by diligent spam-busting software. John Griffiths was surprised when a message from a colleague, Orde Eliason, was blocked by his spam filter. Eliason describes himself in his email signature as a "Specialist Brazilian, Chinese, Indian and South East Asian image source", and his photographs have been used from time to time in New Scientist.

So what could the problem be? Well, it's that word "specialist". It contains the name of the "super-Viagra" pill, Cialis. From now on, Eliason has decided, his signature will begin: "Specializing in..."

That last paragraph came from the Feedback page of this week's New Scientist, does it really do that?